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Table 4 Weighted Cohen’s kappa showing the inter-observer agreement results between the 3 trained observers assessing 31* horses and ponies

From: Assessing the seasonal prevalence and risk factors for nuchal crest adiposity in domestic horses and ponies using the Cresty Neck Score

Observers compared

Observed agreement (%)

Expected agreement (%)

κ w

SE

Z

p

Observer 1 and Observer 2

95.86

89.57

0.60

0.16

3.69

<0.001

Observer 2 and Observer 3

97.16

90.28

0.71

0.17

4.09

<0.001

Observer 1 and Observer 3

94.61

88.30

0.54

0.16

3.26

0.001

  1. *note one observer only assessed 29 horses and ponies.